Bug#1056043: yt ftbfs with Python 3.12 (and cython 3.0.5)

[Ole Streicher]

Hi Matthias,

There is a new version of yt, which should resolve this. However, it 
can't be uploaded due to the missing cython-3 in Debian. If you have 
packaged cython-3.0.5, maybe you can make it available?

Best

Ole